Playing Stand Alone DVD player using laptop

[lipsss699]

Hello, so here is my question. 

I have a stand alone Sony DVD Player, actually I have two of them, the model #'s are as follows:

1. BDP-BX2

2. DAV-HDZ284

BOTH of which have HDMI out ports. 

Now, for the HP side of things, I have an HP Notebook Product #: 10M11UA#ABL .

FINALLY, onto my question(s), so I am trying to play the dvd player, using my laptop as the display. I have tried a couple different things (both with no such luck, hence why I am here).

Firstly, I tried plugging the hdmi cord into the DVD player, and other end into my laptop (as it has an HDMI plug), kind of like a plug n play type of thing; to which NOTHING at all happened. No sounds, no notifications, no change in "Device Manager", absolutely nothing happened at all.

Secondly, I bought a USB-C to HDMI adaptor (as my laptop also has a USB-C port), to which I have a notification that pops up every time I plug the adaptor into my pc that tells me "Display Connection Might Be Limited" (now this notification pops up every single time I plug in the adaptor, whether the HDMI cord is also connected to the adaptor, or not). 

When the adaptor is plugged in, Device Manager also shows a new connection under "Universal Serial Bus Devices" called "USB 2.0 BILLBOARD". Which to my knowledge means that my device is able to enter DP Alt mode, it just isn't for some reason.

So after hours and hours of googling, trying to figure out how to get this to work SOMEHOW, I am at a stalemate. So PLEASE help me, I have no DVD drive in my laptop, and just want to watch movies! 

PS. Yes I have already downloaded VLC. It doesn't matter how I try to plug this DVD player into the pc, nothing is showing up in terms of files, or folders, or ANYTHING in file explorer at all! I keep thinking that it is just a drivers issue, I have already manually updated EVERY SINGLE USB Driver in Device Manager, and as for the drivers for the DVD players, I am just unsure of what I would need to download and/or how.

Thanks in advance. I hope I covered most of the info you require to help me here, but if you need anything more, just let me know.

[TheOldMan]

I can answer why the laptop cannot be used as the viewing solution.  All of the HDMI's on the DVD players are outputs and all of the options for the HDMI on the laptop are outputs, also.  Therefore the solutions you are trying will not work.  There are other solutions to watch the DVD's but not using the monitor of the laptop unless you use a USB connected DVD drive.  The stand alone players cannot be used with the laptop, they require either a TV or a monitor to view the output.